403221463 has 2 divisors, whose sum is σ = 403221464. Its totient is φ = 403221462.

The previous prime is 403221461. The next prime is 403221473. The reversal of 403221463 is 364122304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 403221463 - 2¹ = 403221461 is a prime.

Together with 403221461, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403221461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201610731 + 201610732.

It is an arithmetic number, because the mean of its divisors is an integer number (201610732).

Almost surely, 2^403221463 is an apocalyptic number.

403221463 is a deficient number, since it is larger than the sum of its proper divisors (1).

403221463 is an equidigital number, since it uses as much as digits as its factorization.

403221463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 403221463 is about 20080.3750711982. The cubic root of 403221463 is about 738.7790085217.

Adding to 403221463 its reverse (364122304), we get a palindrome (767343767).

The spelling of 403221463 in words is "four hundred three million, two hundred twenty-one thousand, four hundred sixty-three".